refactor: A `ChatRoom` does not have to remember its shard any more

[demos/kafka/chat] / src / main / java / de / juplo / kafka / chat / backend / persistence / storage / files / FilesStorageStrategy.java

diff --git a/src/main/java/de/juplo/kafka/chat/backend/persistence/storage/files/FilesStorageStrategy.java b/src/main/java/de/juplo/kafka/chat/backend/persistence/storage/files/FilesStorageStrategy.java
index 1e3e5ee..5d3c067 100644 (file)
--- a/src/main/java/de/juplo/kafka/chat/backend/persistence/storage/files/FilesStorageStrategy.java
+++ b/src/main/java/de/juplo/kafka/chat/backend/persistence/storage/files/FilesStorageStrategy.java
@@ -5,7 +5,6 @@ import com.fasterxml.jackson.databind.JavaType;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import de.juplo.kafka.chat.backend.api.ChatRoomTo;
 import de.juplo.kafka.chat.backend.api.MessageTo;
-import de.juplo.kafka.chat.backend.domain.ShardingStrategy;
 import de.juplo.kafka.chat.backend.domain.ChatRoom;
 import de.juplo.kafka.chat.backend.domain.Message;
 import de.juplo.kafka.chat.backend.persistence.StorageStrategy;
@@ -17,7 +16,6 @@ import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.time.Clock;
-import java.util.UUID;
 
 import static java.nio.file.StandardOpenOption.CREATE;
 import static java.nio.file.StandardOpenOption.TRUNCATE_EXISTING;
@@ -33,7 +31,6 @@ public class FilesStorageStrategy implements StorageStrategy
   private final Path storagePath;
   private final Clock clock;
   private final int bufferSize;
-  private final ShardingStrategy shardingStrategy;
   private final ChatRoomServiceFactory factory;
   private final ObjectMapper mapper;
 
@@ -105,18 +102,12 @@ public class FilesStorageStrategy implements StorageStrategy
     return Flux
         .from(new JsonFilePublisher<ChatRoomTo>(chatroomsPath(), mapper, type))
         .log()
-        .map(chatRoomTo ->
-        {
-          UUID chatRoomId = chatRoomTo.getId();
-          int shard = shardingStrategy.selectShard(chatRoomId);
-          return new ChatRoom(
+        .map(chatRoomTo -> new ChatRoom(
               chatRoomTo.getId(),
               chatRoomTo.getName(),
-              shard,
               clock,
               factory.create(readMessages(chatRoomTo)),
-              bufferSize);
-        });
+              bufferSize));
   }
 
   public void writeMessages(ChatRoomTo chatroomTo, Flux<Message> messageFlux)